list排序

时间:2023-11-14 18:40:56

今天要对List排序,上网查了很多方法都感觉比较麻烦,现在终于找到了两种比较简便的方式,在此写出来,防止忘记!同时供大家参考!

  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5. namespace ListSort
  6. {
  7. class Program
  8. {
  9. static void Main(string[] args)
  10. {
  11. List<Customer> listCustomer = new List<Customer>();
  12. listCustomer.Add(new Customer { name = "客户1", id = 0 });
  13. listCustomer.Add(new Customer { name = "客户2", id = 1 });
  14. listCustomer.Add(new Customer { name = "客户3", id = 5 });
  15. listCustomer.Add(new Customer { name = "客户4", id = 3 });
  16. listCustomer.Add(new Customer { name = "客户5", id = 4 });
  17. listCustomer.Add(new Customer { name = "客户6", id = 5 });
  18. ///升序
  19. List<Customer> listCustomer1 = listCustomer.OrderBy(s => s.id).ToList<Customer>();
  20. //降序
  21. List<Customer> listCustomer2 = listCustomer.OrderByDescending(s => s.id).ToList<Customer>();
  22. //Linq排序方式
  23. List<Customer> listCustomer3 = (from c in listCustomer
  24. orderby c.id descending //ascending
  25. select c).ToList<Customer>();
  26. Console.WriteLine("List.OrderBy方法升序排序");
  27. foreach (Customer customer in listCustomer1)
  28. {
  29. Console.WriteLine(customer.name);
  30. }
  31. Console.WriteLine("List.OrderByDescending方法降序排序");
  32. foreach (Customer customer in listCustomer2)
  33. {
  34. Console.WriteLine(customer.name);
  35. }
  36. Console.WriteLine("Linq方法降序排序");
  37. foreach (Customer customer in listCustomer3)
  38. {
  39. Console.WriteLine(customer.name);
  40. }
  41. Console.ReadKey();
  42. }
  43. }
  44. class Customer
  45. {
  46. public int id { get; set; }
  47. public string name { get; set; }
  48. }
  49. }

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ListSort
{
class Program
{
static void Main(string[] args)
{
List<Customer> listCustomer = new List<Customer>();
listCustomer.Add(new Customer { name = "客户1", id = 0 });
listCustomer.Add(new Customer { name = "客户2", id = 1 });
listCustomer.Add(new Customer { name = "客户3", id = 5 });
listCustomer.Add(new Customer { name = "客户4", id = 3 });
listCustomer.Add(new Customer { name = "客户5", id = 4 });
listCustomer.Add(new Customer { name = "客户6", id = 5 });
///升序
List<Customer> listCustomer1 = listCustomer.OrderBy(s => s.id).ToList<Customer>();
//降序
List<Customer> listCustomer2 = listCustomer.OrderByDescending(s => s.id).ToList<Customer>();
//Linq排序方式
List<Customer> listCustomer3 = (from c in listCustomer
orderby c.id descending //ascending
select c).ToList<Customer>();
Console.WriteLine("List.OrderBy方法升序排序");
foreach (Customer customer in listCustomer1)
{
Console.WriteLine(customer.name);
}
Console.WriteLine("List.OrderByDescending方法降序排序");
foreach (Customer customer in listCustomer2)
{
Console.WriteLine(customer.name);
}
Console.WriteLine("Linq方法降序排序");
foreach (Customer customer in listCustomer3)
{
Console.WriteLine(customer.name);
}
Console.ReadKey();
}
}
class Customer
{
public int id { get; set; }
public string name { get; set; }
}
}

效果展示:

list排序